Sensitivity study of Glueball search at Belle II

Abstract

The BABAR collaboration observed an unknown enhancement of around 3 GeV in the 0 m pp spectrum of the B → ppD 0 decay. This resonance does not match with any charmo- nium state or light-flavour mesons, and hence was concluded as corresponding to a glueball fitted as X(3020) with (m X , Γ X ) = (3020 ± 8, 107 ± 30) MeV by [1]. This decay mode is analysed in Belle II while also inserting the glueball as the intermediate that decays into the pp pair.